將參數傳遞給Node.js異步瀑布

Question

我需要將一些參數傳遞給初始函數asyncwaterfall()。所提出的方法，我需要通過它從ExpressJS響應https://github.com/caolan/async/issues/14不爲我的功函數

exports.categories = (req, res) -> 
    async.waterfall [   
     (callback) -> 
     # need req here... 

Answer 1

async.waterfall [ 
    ((req, callback) -> 

).bind(null, req) 
] 

Answer 2

見async.apply()。

async.waterfall([ 
    async.apply(function(req, callback) {}, req); 
]);